"The adventure begins with the PCs lost in the streets of Sigil's Lower Ward." --from the module. The PCs are approached by a tiefling telling them about a job. The tiefling's employer wants the heroes to search for a child who is rumored to be some sort of chosen one from an ancient prophecy. Includes a map of Durkayle's Stronghold, a map of the Black Sail Tavern, a map of the Screaming Tower, and an isometric map of Zactar Cathedral.

Demonheart is a D20 adventure campaign for 4-5 characters. As it is a long and fairly involved story, characters should be level 6-8 when they begin and will earn enough experience to rise to levels 10-12. Demonheart includes many opportunities for both combat and roleplaying. At least one fighter-type is required, and given the wild, frontier nature of the campaign, a ranger’s skills would be especially useful. Stealth and intrigue also favor rogue characters, while a cleric, particularly from a martial order who can fight well would find plenty of opportunity to use his or her powers against the undead and evil outsiders. Demonheart also takes place in a wilderness setting where ancient magic abounds, and the special nature skills of a druid will help the party to make friends with some of the land’s fey or wild elvish inhabitants. Sorcerers and wizards will likewise find use for their talents, but those who understand divine or druidic magic may be more important than arcanists. As this adventure involves the struggle against evil, both ancient and resurgent, the party’s overall alignment should be good, though individuals of other alignments may be tempted to use the ancient magic of the forest for their own ends, or even join with the forces of evil!